<template>
    <el-container>
    <el-header>
        <span class="left">管理系统</span>
        <span class="left">登录者姓名</span>
    </el-header>
    <el-container>
        <el-aside width="200px" minheight="500px">
            <el-menu
            default-active="2"
            class="el-menu-vertical-demo"
            @open="handleOpen"
            @close="handleClose">
            <el-submenu index="1">
                <template slot="title">
                <i class="el-icon-location"></i>
                <span>导航一</span>
                </template>
                <el-menu-item-group>
                <template slot="title">分组一</template>
                <el-menu-item index="1-1">选项1</el-menu-item>
                <el-menu-item index="1-2">选项2</el-menu-item>
                </el-menu-item-group>
                <el-menu-item-group title="分组2">
                <el-menu-item index="1-3">选项3</el-menu-item>
                </el-menu-item-group>
                <el-submenu index="1-4">
                <template slot="title">选项4</template>
                <el-menu-item index="1-4-1">选项1</el-menu-item>
                </el-submenu>
            </el-submenu>
            <el-menu-item index="2">
                <i class="el-icon-menu"></i>
                <span slot="title">导航二</span>
            </el-menu-item>
            <el-menu-item index="3">
                <i class="el-icon-document"></i>
                <span slot="title">导航三</span>
            </el-menu-item>
            <el-menu-item index="4">
                <i class="el-icon-setting"></i>
                <span slot="title">导航四</span>
            </el-menu-item>
            </el-menu>
        </el-aside>
        <el-main>Main</el-main>
    </el-container>
    </el-container>
</template>

<script>
export default {

}
</script>

<style>
.el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
  }
  
  .el-aside {
    background-color: #D3DCE6;
    color: #333;
    text-align: center;
    line-height: 200px;
  }
  
  .el-main {
    background-color: #E9EEF3;
    color: #333;
  }
  
  body > .el-container {
    margin-bottom: 40px;
  }
  
  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }
  
  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }
</style>